The Nervous System I have a really bad pun and it "pains"me to say it

Connor Flynn, D Block, March 31,2017

Central Nervous System Main Parts

The Brain

Maintains all needed abilities to keep your body alive.

Spinal Cord

Helps connect the brain to to a large part of the nervous system.

Helps transmit information or nerve impulses to and from the brain.

The Three Main Parts of the Brain

The Cerebrum is in charge of problem solving, remembering, feeling, thinking, and movement. This part is the biggest part of the brain.

The Cerebellum is in charge of balance and coordination. This part sits below the Cerebrum at the back of the brain.

The Brain Stem connects the brain and spinal cord. It is in charge of breathing, digestion, heart rate, and blood pressure. It sits below the other two parts.

Peripheral Nervous System Main Part

Nerve Fibers

Thread like extensions of the nerve cell that carry impulses.

There are three types: A Fibers, B Fibers, and C Fibers. A Fibers are the largest and have the fastest speed of conduction. C Fibers are the smallest and the slowest for conduction.

Main Functions of the System

  1. Sensory input
  2. Integration
  3. Motor output

Diseases and Injuries

Subdural Hematoma

Caused by head trauma. Forms a collection of blood on the outside of the brain. Symptoms are but not limited to: headache, confusion, change in behavior, dizziness, nausea, excessive drowsiness, weakness, apathy (lack of interest or concern), and seizures.


When the brains impulses are not affecting a muscle function. This leads to you not being able to use that part of your body. Can be caused by spinal cord injury or strokes. There is no cure for permanent paralysis.

Fun Facts

I had a subdural Hematoma in 2014. I don't know what caused it but it happened over a longer period of time (chronic). I had to get burr holes (the neurosurgeon drilled into my skull and suctioned out the blood) because of a large hematoma that a 9 mm midline shirt of my brain to the right.

After the surgery I devolved paralysis (Bell's Palsy). This was temporary potentially related to stress. I could not move the whole left side of my face for a little over a week.

"In humans, the right side of the brain controls the left side of the body, while the left side of the brain controls the right side."

"There are millions of nerve cells in the human body. This number even exceeds the number of stars in the Milky Way."

"Weight of brain is different in male and female. In males it is around 1375 g, while in female the weight of brain is around 1275 g. As we grow up, we lose almost one gram of brain weight per year."

Normal MRI of a brain

MRI of my brain

Normal MRI of a brain

MRI of my brain

Nervous System and the Skeletal System

Nerves connected to the skeleton and some muscles, when stimulated, will send impulses up through the spinal cord to the brain.


"3 Main Parts of the Brain." Alzheimer's Association. Web. 30 Mar. 2017.

"Art District Chiropractic, LLC." Fun Facts. Web. 30 Mar. 2017.

"Did You Know – Facts Facts You Need to Know." Did You Know – Facts. Web. 30 Mar. 2017.

"Neuroscience For Kids." Neuroscience For Kids - Explore the Nervous System. Web. 30 Mar. 2017.

"Paralysis | Hemiplegia | MedlinePlus." MedlinePlus Trusted Health Information for You. Web. 30 Mar. 2017.

"Subdural Hematoma." WebMD. WebMD. Web. 30 Mar. 2017.

National Institutes of Health. U.S. Department of Health and Human Services. Web. 30 Mar. 2017.

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Created with images by IsaacMao - "Brain" • Myriams-Fotos - "cold ill fever thermometer"

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